A 90% confidence interval for a proportion is found to be (0.52, 0.58). What isthe sample proportion?

A 90% Confidence Interval For A Proportion Is Found To Be (0.52, 0.58). What Isthe Sample Proportion?

Answers

Answer 1

A 90% confidence interval for a proportion is given as (0.52,0.58).

It is required to find the sample proportion.

Recall that for confidence interval (x,y), the sample proportion is the midpoint:

[tex]c=\frac{x+y}{2}[/tex]

Substitute x=0.52 and y=0.58 into the equation:

[tex]c=\frac{0.52+0.58}{2}=\frac{1.1}{2}=0.55[/tex]

The answer is C.


Related Questions

In 2002, the population of Isosceles City was 200,000. If expected growth is 10% per year, what will the expected population be in 2010?

Answers

The expected population in [tex]2010[/tex] will be [tex]428,717.762[/tex].

In [tex]2002[/tex] the population of Icosceles city was [tex]200,000[/tex].

The expected growth per year [tex]=10%[/tex]%

We have to find the expected population in [tex]2010[/tex].

From [tex]2002[/tex] to [tex]2010[/tex] the total years are [tex]8[/tex].

Since the population is increased every year so the population of previous year added. So we can see that the population is increased compound. We can find the total population by multiplying the population in 2002 with the rate assembled by one. So we can use the formula

Total population in [tex]2010=[/tex]Population in [tex]2002(1+\frac{rate}{100})^{year}[/tex]

Total population in [tex]2010=[/tex] [tex]2010=200,000(1+\frac{10}{100})^{8}[/tex]

Total population in [tex]2010=200,000(1+\frac{1}{10})^{8}[/tex]

Total population in [tex]2010=200,000(\frac{11}{10})^{8}\\[/tex]

Total population in [tex]2010=200,000(\frac{214,358,881}{100000000} )[/tex]

Total population in [tex]2010=200,000(2.14,358,881)[/tex]

Total population in [tex]2010=428717.762[/tex]

To learn more about compound formula here link

https://brainly.com/question/13307568

#SPJ1

In the similaritytransformation of AABCto ADEF. ABC was dilatedby a scale factor of 1/2reflected across the !? 1,and moved through thetranslation [1.

Answers

Solution: C. Y-Axis

Analysis: In this case, the triangle is reflected across the Y-Axis. That's the reason why the triangle changes the orientation of the initial triangle.

Example: Point B reflects Point E. X=2 to X=-2. And the value of Y stands.

A satellite dish is the shape of a paraboloid. The dish is 42 inches wide, and 10 inches
deep. How many inches should the receiver be located from the vertex for optimal
reception? (round to the nearest thousandth)

Answers

The receiver is situated 44.24 inches from the vertex, is the correct response.

Define parabola.

Any point on a parabola is at an equal distance from both the focus, a fixed point, and the directrix, a fixed straight line. A parabola is a U-shaped plane curve. The topic of conic sections includes parabola, and all of its principles are discussed here. A parabola is an approximately U-shaped, mirror-symmetrical plane curve in mathematics. It corresponds to a number of seemingly unrelated mathematical descriptions, all of which can be shown to define the same curves. A parabola can be described using a point and a line.

Observe the illustration below. It depicts the paraboloid's vertical cross-section through its axis of symmetry.

Make the origin of the parabola the vertex.

Then, it has the equation y = bx².

The parabola crosses via (21,10), therefore

10 = b(21²)  

= 0.0226

because

Its equation is y =0.0226²

For best reception, the receiver should be positioned at the paraboloid's focus point.

The focus has a y-coordinate of

a = 1/(4b)

= 1/0.0226

= 44.24 in

The receiver is situated 44.24 inches from the vertex, is the correct response.

To learn more about parabola, visit:

https://brainly.com/question/21685473

#SPJ13

A-32-10A. 20-C?LBDIn the similaritytransformation of AABCEto AEDF, AABC was dilated bya scale factor of [?], reflectedacross the [ ], and movedthrough the translation [ ].B. 1/23 4F 5 Find the answer to all three missing boxes

Answers

To find the scale factor use the next formula:

[tex]sf=\frac{dimension\text{ }new\text{ }shape}{dimension\text{ }original\text{ }shape}[/tex]

Use dimension of corresponding sides AB and ED:

[tex]sf=\frac{2}{4}=\frac{1}{2}[/tex]Then, the scale factor is 1/2

___________After the dilation the figure is reflected across the y-axis

_____________

Then, the triangle is translated one unit to the right and 3 units up [+1,+3] or [1,3]

I need help, I don’t know which one would have factors of 5x-8

Answers

In this case, we'll have to carry out several steps to find the solution.

Step 01:

data:

factor:

5x - 8

Step 02:

difference of squares:

(5x - 8)(5x + 8) = 25x² - 64

The answer is:

25x² - 64

Find the average rate of change of the following function from t = 1 to t=2.5h(t) = 148 – 16t

Answers

The average rate of change of the function from t=1 to t=2.5 is given by:

[tex]\frac{h(2.5)-h(1)}{2.5-1}=\frac{h(2.5)-h(1)}{1.5}[/tex]

It is given that:

[tex]\begin{gathered} h(t)=148-16t \\ h(2.5)=148-16\times2.5=108 \\ h(1)=148-6=142 \end{gathered}[/tex]

Substitute the values to get:

[tex]\frac{h(2.5)-h(1)}{1.5}=\frac{108-142}{1.5}=\frac{-68}{3}\approx-22.6667[/tex]

Hence the rate of change is -22.6667.

Using the Distributive Property, which of the following expressions are equivalent to 7 x 6? Select all that apply. A. (6 x 7)+(6 x 7)
B. (5×6) + (2 × 6)
C. (7 x 6) + (1 x 6)
D. (7 x 6) + (2 x 6)
E. (2 x 6)+(5 x 6)

Answers

By using the Distributive Property, the equivalent expression to 6 x 7 is option (B) (5 x 6) + (2 x 6) and option (E) (2 x 6) + (5 x 6).

Distributive property:

The distributive Property defines that when a factor is multiplied by the addition of two terms, it is essential to multiply each of the two numbers by the factor, and finally perform the addition operation.

This property can be stated symbolically as:

A ( B+ C) = (A x B) + (A x C)

Where A, B and C are three different values.

Given,

Here we have the expression 7 x 6.

Now, we need to find the equivalent expression by using the distributive expression.

AS per the definition of distributive property,

First we have o identify in which term is got separated,

Here they separated the term 7.

So, there three way for dividing it,

They are,

6 + 1 = 7

2 + 5 = 7

3 + 4 = 7

Based on these, we have two way to write the expression,

one is,

(5 x 6) + (2 x 6)

Another way is,

(2 x 6) + (5 x 6)

So, the correct options are option (B) and (E).

To know more about Distributive property here.

https://brainly.com/question/5637942

#SPJ1

can you help me with discount tax tip and markup

Answers

Answer:

Final Price = $24.5

Explanation:

To found the final price, we first need to find 30% of $35 as follows:

[tex]35\times30\text{ \% = 35}\times\frac{30}{100}=10.5[/tex]

So, there will be a discount of $10.5

Then, the final price will be the original price less the 30% of $35, so the final price will be equal to:

Final Price = Original Price - Discount

Final Price = $35 - $10.5

Final Price = $24.5

So, the answer is $24.5

Choose all true inequalities from the list below.3 < 8-8 < -3-5 < -2118 > 4

Answers

ANSWER and EXPLANATION

We want to identify which of the inequalities are correct.

For the inequality to be correct, the left and right-hand sides of the inequality must agree with

Hey there Mr or Ms could you help me out here with this problem? Just a head up this isn't a quiz, it's my homework assignment for today it's about Squares and Rhombi.

Answers

please see the attched figure o better understand the problem

Applying the Pythgorean Theorem

d^2=b^2+b^2

we have

b=10 units

substitute

d^2=10^2+10^2

d^2=100+100

d^2=200

[tex]d=\sqrt[]{200}[/tex]

simplify

[tex]d=10\sqrt[\text{ }]{2\text{ }}\text{ units}[/tex]

the diagonal is

[tex]d=10\sqrt[\text{ }]{2\text{ }}\text{ units}[/tex]

A ladder that is 55 meters in length is resting on a branch of a tree, and the base of the ladder is 33 meters from the tree on the level ground. How high up is the branch on which the ladder is resting?

Answers

the diagram of situation is given as follows

so by using the right-angle property.

[tex]x^2+33^2=55^2[/tex][tex]\begin{gathered} x^2=3025-1089=1936 \\ x=\sqrt[]{1936} \end{gathered}[/tex][tex]x=44[/tex]

so the height of the tree is 44

Aaquib can buy 25 liters of regular gasoline for $58.98 or 25 liters of permimum gasoline for 69.73. How much greater is the cost for 1 liter of premimum gasolinz? Round your quotient to nearest hundredth. show your work :)

Answers

The amount by which the cost of 1 liter of permimum gasoline is greater is $0.43.

By how much is permimum gasoline greater?

The first step is to determine the cost of 1 liter of each type of gasoline. In order to determine the cost of 1 liter, divide the total cost by the number of liters of gasoline bought.

Cost of 1 liter of gasoline = total cost / total liters bought

Cost of 1 liter of regular gasoline = $58.98 / 25 = $2.36

Cost of 1 liter of permimum gasoline = $69.73 / 25 = $2.79

Difference in price = $2.79  - $2.36 = $0.43

To learn more about cost, please check: https://brainly.com/question/25717996

#SPJ1

how many cheese pizzas can the girls buy if they pool all their money together? inequality form for each scenario. CHEESE PIZZA IS 7.25 DOLLARS.

Answers

Since we have 5 girls and their parents give each other $10, they have in total $50.

Now, let x be the number of pizzas they buy, since each pizza cost $7.25 the total cost for x pizzas is:

[tex]7.25x[/tex]

this should be less or equal to $50 (otherwise the girls go over budget), then the inequality that represents this situation is:

[tex]7.25x\leq50[/tex]

Now, solving the inequality we get:

[tex]\begin{gathered} 7.25x\leq50 \\ x\leq\frac{50}{7.25} \\ x\leq6.9 \end{gathered}[/tex]

Therefore, they can buy a maximum of 6 pizzas without going over budget.

molly has 12 stickers 1/3 of her stickers are blue exactly how many stickers are not blue

Answers

Answer:

8 stickers

Step-by-step explanation:

beacuse 1/3 =4 4x3 =12  12-4=8 here you go:)

how much of each ingredient would you need to make an identical recipe that serves 8 people explain your reasoning

Answers

LITERS OF SODA

24 people calls for 4 liters of lemon soda

18 people calls for x liters of lemon soda

24 people = 4 liters

18 people = x

cross multiply

24x = 72

Divide both-side of the equation by 24

x = 3

18 peoples calls for 3 liters of soda

PINT OF SHERBET

24 people calls for 2 pint of sherbet

18 people calls for x pint of sherbet

24 people = 2 pint

18 people = x

cross-multiply

24x = 36

Divide both-side of the equation by 24

x =1.5

18 peoples calls for 1.5 pint of sherbet

CUPS OF RICE

24 peoples calls for 6 cups of rice

18 people calls for x cups of rice

24 people = 6 cups of rice

18 people = x

cross multiply

24x = 108

Divide both-side of the equation by 24

x=4.5

18 people calls for 4.5 cups of rice

Hence, 18 people calls for; 3 liters of soda, 1.5 pint of sherbet and 4.5 cups of rice

Find the degree of the polynomial.2x6 − 4x2 + 3x − 1

Answers

Given:

There are given the equation:

[tex]f(x)=2x^6-4x^2+3x-1[/tex]

Explanation:

According to the question, we need to find the degree.

So,

From the concept of degrees:

The degree is the largest exponent of the variable.

Final answer:

Hence, the value of the degree is 6.

How do I Graph the line with the given slope m and y-intercept b.
M=-4/3,b=2

Answers

So first start at the y-intercept which is also “b”
Then look at your slope “m” and the top is the vertical movement and the denominator is the horizontal movement. So to solve this, you start at (0,2) and you have two choices, to go down 4 and right three OR up 4 left 3.
Remember: if the slope a integer, the denominator is one so you can move left or right one according

what is the domain of this exponential function y=2x-8+2

Answers

The given function is

[tex]y=2^{x-8}+2[/tex]

The domain is all real numbers, but the range would be all the real numbers greater than 2 because the function approximates to y = 2.

Hence, the answer is the first option.

Can u guys simplify this?
(2x^-3y^5)^2*(x^7y^-11)

Answers

Answer is in photo! :)
Answer is in the photo

14 Tom can whitewash a fence alone in 4 hours, and Huck can whitewash the same fence in 5 hours working by himself. Tom whitewashes with Huck for 1 hour and then leaves. How long will it take Huck to finish whitewashing the fence?

Answers

Given:

Time it takes Tom = 4 hours

Time it takes Huck = 5 hours

Tom then whitewashes with Huck for 1 hour and then leaves.

Let's find how long it will take Huck to finish whitewashing the fence.

We have:

Tom's rate = 1/4

Huck's rate = 1/5

Total rate:

[tex]\frac{1}{4}+\frac{1}{5}=x[/tex]

Now, let's find the time it will take them to whitewash together.

[tex]\begin{gathered} \frac{1}{T}=\frac{5+4}{20} \\ \\ \frac{1}{T}=\frac{9}{20} \\ \\ T=\frac{20}{9} \\ \\ T=2.22 \end{gathered}[/tex]

It will take them 2.22 hours to whitewash together.

Now they both whitewash together for 1 hour before Huck leaves.

We have:

[tex]2.22-1=1.22[/tex]

When Huck leaves after one hour, the time left for both of them to finish together is 1.22 hours.

Since only Huck will finish whitewashing the fence, the time it will take him will be:

[tex]5(1-\frac{1.22}{2.22})=2.25[/tex]

Therefore, it will take Huck to finish whitewashing the fence is 2.25 hours.

ANSWER:

2.25 hours

Camden, a florist, is dividing 56 flowers equally into 8 bouquets. He uses division to find that he can put 7 flowers in each bouquet. Which subtraction equation could he use to check his answer?

Answers

The subtraction equation that Camden could use to check his answer is, x = 56 - 8 x 7.

What is a subtraction equation?

A subtraction equation is an equation, which is a mathematical statement that two mathematical expressions share equality, which involves the use of the subtraction operation.

The result of a subtraction operation is known as the difference.  The other parts of a subtraction operation are the minuend and the subtrahend.

The total number of flowers for the bouquets = 56

The number of bouquets = 8

The number of flowers for each bouquet = 7 (56/8)

Check:

x = 56 - 7 x 8

x = 56 - 56

x = 0

To check if the answer is correct, Camden should multiply 7 by 8 and then subtract the product from 56.

Thus, the difference in the subraction equation x = 56 - 8 x 7 that Camden used is zero, showing that his earlier division operation was correct.

Learn more about equations at https://brainly.com/question/2972832

#SPJ1

Adele opens an account with $140 and deposits $35 a month. Kent opens an account with $50 and also
deposits $35 a month. Will they have the same amount in their accounts at any point? If so, in how many
months and how much will be in each account? Complete the explanation.
have the same amount in their accounts at a certain point. Setting the expressions equal
which is (select)
and solving them gives 140=
They (select)
to each other gives 140 + 35x =
View Exampl
Step-by-Stepm
Textbook
Print
Turn it in
Save & Close

Answers

Answer: No

Step-by-step explanation:

If Adele opens an account with more money than Kent, and they deposit the same amount each month, Adele will always have more money than Kent.

in a 30 60 90° triangle giving the short leg equals 5 find a hypotenuse of the triangle

Answers

To answer this question we need to remember that the longest and shortest side in any triangle are always opposite to the largest and smallest angle, respectively.

With this in mind we can draw the triangle:

Now, we need to find the hypotenuse. To do this we can use the cosine function for the angle 60. Remember that the cosine function is given as:

[tex]\cos \theta=\frac{\text{adj}}{\text{hyp}}[/tex]

In this case we have that:

[tex]\begin{gathered} \cos 60=\frac{5}{\text{hyp}} \\ \text{hyp}=\frac{5}{\cos 60} \\ \text{hyp}=10 \end{gathered}[/tex]

Therefore the hypotenuse is 10.

simplify-6u^2 v-u^v^2-22u^2v^2

Answers

simplify-6u^2 v-u^v^2-22u^2v^2

we have

[tex]undefined[/tex]

9. As a speed skater, Kyle cycles between sprinting and recovering on the 111.12-meter short track during practice every day for 50 minutes. Let t be the time in hours that Kyle sprints during a practice. A. Write the unsimplified expression to represent the total distance Kyle skates. It may help you to make a verbal model to represent the total distance Kyle skates. Be sure to use compatible units.

Answers

SOLUTIONS

As a speed skater, Kyle cycles between sprinting and recovering on the 111.12 meter short track during practice every day for 50 minutes.

Let t be the time in hours that Kyle sprints during practice.

Sprint Speed: 48 km/hr

Recovery: 18 km/hr

(a)

Write an unsimplified expression to represent the total distance Kyle skates.

[tex]speed=\frac{distance}{time}[/tex]

If t= time sprinting then (50-t)= time recovering

Distance = rate x time= t(48) + (50-t)18

Distance = 111.2m

(c) Simplifying the expression

A) equation in center radius form B) equation in general form

Answers

The equation of a circle in center-radius form, is:

[tex](x-h)^2+(y-k)^2=r^2[/tex]

-Where the coordinates of the center of the circle are (h,k) and the radius of the circle is r.

From the given graph, we can see that the coordinates of the center are (-2,4) and the radius of the circle is 2.

a)

To determine the equation of the circle in center-radius form, replace h=-2, k=4 and r=2

[tex]\begin{gathered} \Rightarrow(x-(-2))^2+(y-(4))^2=2^2 \\ \Rightarrow(x+2)^2+(y-4)^2=4 \end{gathered}[/tex]

Therefore, the equation of the circle in center-radius form is:

[tex](x+2)^2+(y-4)^2=4[/tex]

b)

To find the equation of the circle in general form, expand the parentheses and take all the terms to the left member:

[tex]\begin{gathered} (x+2)^2+(y-4)^2=4 \\ \Rightarrow x^2+2(2)(x)+(2)^2+y^2-2(4)(y)+4^2=4 \\ \Rightarrow x^2+4x+4+y^2-8y+16=4 \\ \Rightarrow x^2+4x+y^2-8y+20=4 \\ \Rightarrow x^2+4x+y^2-8y+20-4=0 \\ \Rightarrow x^2+4x+y^2-8y+16=0 \end{gathered}[/tex]

Write the quadratic terms first:

[tex]\Rightarrow x^2+y^2+4x-8y+16=0[/tex]

Therefore, the equation of the circle in general form, is:

[tex]x^2+y^2+4x-8y+16=0[/tex]

<1 and <2 are complementary angles. the measure of <1 is 55°. the measure of <2 is 5(x+1)°.find the value of x.

Answers

Answer:

Step-by-step explanation:

Answer 29

A library give every employee a $500 bonus. What effect, if any does it have on(a) mean (b) median (c) mode (d) Standard division

Answers

The mean is the

sum of salaries/number of employees

Assuming the salaries of 5 employees were

1000, 2000, 3000, 4000, 4000

Mean = (1000 + 2000 + 3000 + 4000, 4000)/5 = 2800

If we add a bonus of $500 to each, we have

1500, 2500, 3500, 4500, 4500

Mean = (1500 + 2500 + 3500 + 4500 + 4500)/5 = 3300

Thus, the mean increases

The median is the middle value

The middle value was 3000, the new median is 3500

The median increases

The mode is the value with the highest frequency. The former mode is 4000. The new mode is 4500

the mode increases

The standard deviation is how far the values are from the mean

Standard deviation = Square root of the square of (each value - mean)/ number of values. Thus, we have

[tex]undefined[/tex]

1/4×3/2×8/9 whats the answer?

Answers

Multiply the given fractions to find the answer, use the given example:

Now, solve the given multiplication:

[tex]\frac{1}{4}\cdot\frac{3}{2}\cdot\frac{8}{9}=\frac{1\cdot3\cdot8}{4\cdot2\cdot9}=\frac{24}{72}=\frac{1}{3}[/tex]

The answer is 1/3.

Vera cut a piece of fabric into 5 equal-length pieces. Then she cut another 3 centimeters off one piece, leaving 6 centimeters of fabric. How many centimeters long was her original piece of fabric? Write two equations with letters for the unknowns. Solve.

Answers

We have

fabric cut into 5 equal -length pieces

she cut 3 cm

l=length of one piece of the 5 equals pieces

l=6+3

l=9

the original piece of fabric is

o= length of the original fabric

o=5l

o=5(9)

o=45 cm

the original piece of fabric is 45 cm

Other Questions
advantages of cross-listing include group of answer choices possibly making investors, both at home and abroad, more willing to provide capital and to increase the value of the pre-existing shares. a possible signal of the company's commitment to shareholder rights. all of the options providing their shareholders with a higher degree of protection than may be available in the home country. Which statement is true about the United States government after the American Revolution a lighthouse is located on a small island 4 km away from the nearest point p on a straight shoreline and its light makes two revolutions per minute. how fast is the beam of light moving along the shoreline when it is 1 km from p? (round your answer to one decimal place.) Tran is in charge of the school's Awards Dinner. She set up the multi-purpose room with a stage in front and round tables for parents, students, and family members to sit around for dinner. Below is the floorplan that she drew for the eventStageHow many people can be seated as the tables are arranged right now? (In the box below, type your answer as a number only write el- la -los-las A 3.00 L sample of paint that has a density of 4.65 g/mL is found to contain 33.1 g lead (II) nitride. what is mass percentage of lead in the paint and what is the ppm? whats the theme of Hawkes Harbor? Why is it important for nurses to know basic arithmetic and algebra? Will the artificial cell become more flaccid, more turgid, or stay the same?Options:A) The artificial cell will burst.B) The artificial cell will stay the same.C) The artificial cell will become more flaccid.D) The artificial cell will become more turgid. a plc program requires a routine where a sint value is subtracted from a sint value. what is the smallest data type available that can accurately hold the full result for all possible input cases. as scrooge leaves his house on christmas morning, he notices the doorknocker again. why do you think dickens draws attention to this seemingly unimportant object? ADDRESSING framework interview for african american woman in psychology complete the square to writey= x2 + 4x +9 in graphing form. a company's product sells at $12.34 per unit and has a $5.51 per unit variable cost. the company's total fixed costs are $96,300. the break-even point in units is: a boat traveled 27miles in 2hours at this rate how many miles will the boat travel in 1/2 hours? Angelina has 10 yards of fabric. She needs yard of fabric for each purse she will sew. How many purses will she be able to make? the ability to get another actor to do what it would not otherwise have done, or not to do what it would have done, is the definition of a. realism b. force c. anarchy d. power e. rationality Solve. 2x 5=-3x + 15 Triangle UVW, with vertices U(-5,5), V(-4,7), and W(-9,8), is drawn on the coordinate grid below. of the options below, select the one you think is the most frequent complaint interviewers have about their candidates for on-campus interviews each year? (opinion question) select an answer and submit. for keyboard navigation, use the up/down arrow keys to select an answer. a inappropriate attire b bad breath c poor company research d not enough time spent on practice interview questions.